easy just win a Pokemon contest
you battle them
you need to fight them to get past
you get the National Dex.
Defeat Team Galactic on Mt. Coronet.
You must obtain the National Pokedex. (And it's PAL Park, not Pearl Park.)
To get past the people that are blocking your way, you need to see every Pokemon in the shinnoh dex and then get the national dex.
you battle them
You talk to them then the BATTLE is on
you need to fight them to get past
you get the National Dex.
get the HM Defog
they let you through stuped
Defeat Team Galactic on Mt. Coronet.
You must obtain the National Pokedex. (And it's PAL Park, not Pearl Park.)
obtain national pokedex
you go to the team galactic person and chasse him
complete the sinnoh dex.hope this helps:)